Kepler-186, stellar object Kepler-186 c, planet, semi-major axis: 0.052±0.007 AU Kepler-186 d, planet, semi-major axis: 0.078±0.010 AU Kepler-186 b, planet, semi-major axis: 0.034±0.005 AU Kepler-186 e, planet, semi-major axis: 0.110±0.015 AU Kepler-186 f, planet, semi-...
According to Kepler's third law,the orbital period T of a planet is related to the radius R of its 相关知识点: 试题来源: 解析 即T ^ 2=t ^ 2 * R ^ 3 / r ^ 3 (R / r=4.97,故R ^ 3 / r ^ 3 =122.763473) 两边开方:T=t * (R ^ 3 / r ^ 3) ^ 0.5=11.07986791 (years...
(about 0.0001 percent of the stars in the Milky Way). In August of 2010, the first multi-planet system, Kepler-9, was found. Because of the multiple bodies it made measuring properties such as mass and orbital period easier to discern. In January of 2011 the first rocky planet, Kepler-...
Using synthetic planetary systems generated by the Generation III Bern Model, we also obtained theoretical predictions of period ratio distributions of planet pairs of different compositions and origins. Results. We find that Kepler sub-Neptune pairs show a significant preferen...
The four companion planets, Kepler-186b, Kepler-186c, Kepler-186d, and Kepler-186e, whiz around their sun every four, seven, 13, and 22 days, respectively, making them too hot for life as we know it. These four inner planets all measure less than 1.5 times the size of Earth. The...
Sidereal period, the time required for a celestial body within the solar system to complete one revolution with respect to the fixed stars—i.e., as observed from some fixed point outside the system. The sidereal period of a planet can be calculated if i
At this point, we introduce another cut: that at least two transits have been observed by Kepler. Without the two transits, the orbital period cannot be precisely measured and this in turn makes it impossible to measure the eccentricity of the planets photometrically—a test we will depend on...
(K) runaway GH 0% 50% 100% 241 218 182 247 223 186 259 234 194 292 263 218 332 300 250 326 294 243 373 338 281 381 344 285 384 346 287 ...
Orbital period [days] 8.3985±0.0001 Semi-major axis [AU] N/A Eccentricity N/A Equilibrium temperature [K] N/A Discovery method transit Discovery year 2016 Last updated [yy/mm/dd] 16/05/10 Stars in the system This table lists all stars in the system Kepler-788. Kepler-788 Alternative ...
We are curious about frequency of comet-like tail formation among short-period Kepler exoplanet candidates. We concentrate on a sample of 20 close-in candidates with a period similar to KIC012557548b from the Kepler mission. We first improved the preliminary orbital periods and obtained the ...